package com.heima.media.controller;

import com.alibaba.excel.EasyExcel;
import com.alibaba.excel.context.AnalysisContext;
import com.alibaba.excel.read.listener.ReadListener;
import com.alibaba.excel.util.MapUtils;
import com.alibaba.fastjson.JSON;
import com.heima.common.dto.ResponseResult;
import com.heima.media.entity.WmNews;
import com.heima.media.entity.WmSensitive;
import com.heima.media.service.IAuditService;
import com.heima.media.service.IWmNewsService;
import com.heima.media.service.IWmSensitiveService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.net.URLEncoder;
import java.util.Collection;
import java.util.List;
import java.util.Map;

@RestController
@RequestMapping("/test")
public class TestController {

    @Autowired
    private IWmNewsService newsService;

    @Autowired
    private IAuditService auditService;

    @Autowired
    private IWmSensitiveService sensitiveService;

    @GetMapping("/{id}")
    public ResponseResult audit(@PathVariable("id") Integer id) {
        // 根据id查询文章
        WmNews wmNews = newsService.getById(id);
        // 调用审核服务
        auditService.audit(wmNews);
        return ResponseResult.okResult();
    }

    /**
     * 读取excel
     * @param file
     * @return
     * @throws IOException
     */
    @PostMapping("/read")
    public ResponseResult readExcel(MultipartFile file) throws IOException {
        // 参数  1 输入流  2 使用哪个类来读取(头部定义信息) 3 读取监听器
        EasyExcel.read(file.getInputStream(), WmSensitive.class, new ReadListener<WmSensitive>() {
            @Override
            public void invoke(WmSensitive o, AnalysisContext analysisContext) {
                // 读取每一行数据触发
                System.out.println(o);
                // todo 更新到数据库,判断当前敏感词是否已经存在,不存在新增
            }

            @Override
            public void doAfterAllAnalysed(AnalysisContext analysisContext) {
                // 全部读取完成触发
                System.out.println("全部处理完成");
            }
        }).sheet().doRead();
        return ResponseResult.okResult();
    }


    /**
     * 文件下载并且失败的时候返回json（默认失败了会返回一个有部分数据的Excel）
     *
     * @since 2.1.1
     */
    @GetMapping("downloadFailedUsingJson")
    public void downloadFailedUsingJson(HttpServletResponse response) throws IOException {
        // 这里注意 有同学反应使用swagger 会导致各种问题，请直接用浏览器或者用postman
        try {
            response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
            response.setCharacterEncoding("utf-8");
            // 这里URLEncoder.encode可以防止中文乱码 当然和easyexcel没有关系
            String fileName = URLEncoder.encode("测试", "UTF-8").replaceAll("\\+", "%20");
            response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + fileName + ".xlsx");
            // 这里需要设置不关闭流
            EasyExcel.write(response.getOutputStream(), WmSensitive.class).autoCloseStream(Boolean.FALSE).sheet("模板")
                    .doWrite(data());
        } catch (Exception e) {
            // 重置response
            response.reset();
            response.setContentType("application/json");
            response.setCharacterEncoding("utf-8");
            Map<String, String> map = MapUtils.newHashMap();
            map.put("status", "failure");
            map.put("message", "下载文件失败" + e.getMessage());
            response.getWriter().println(JSON.toJSONString(map));
        }
    }

    private List<WmSensitive> data() {
        return sensitiveService.list();
    }
}
